Wagon-jack



(No Model.)

W T. BROWN.

WAGON JACK.

No. 394,820. Patented Dec. 18, 1888.

' vwawtoz, m'ELBmu/M l vitmeooeo UNITED STATES PATENT OFFICE.

IVILLIAM T. BROW N, OF SIVAN, KENTUCKY.

WAGON-JAG K.

SPECIFICATION forming part of Letters Patent No. 394,820, dated December18, 1888.

Application filed tcmbct 25, 1888. Serial No. 286,357. (No model.)

To all whom it Hwy concern:

Be it known that 1, WILLIAM T. BROWN, a citizen of the United States,residing at Swan, in the county of Graves and State of Kentucky, haveinvented new and useful Improvements in lVagon-Ja-cks, of which thefollowing is a specification.

My invention relates to improvements in wagon-jacks; and it consists incertain novel features hereinafter described and claimed.

In the accompanying drawings, Figure 1 a perspective view showing thedevice adjusted to raise the front axle of the wagon. Fig. 2 is a sideelevation showing it adjusted to raise the rear axle. Fig. 3 is asectional view showing the device locked to hold the rear axle raised.

Referring to the drawings by letter, A designates the standard, having anotch, 13, in its upper end and provided at its lower end with anextension, 0. The said extension has a tenon or tongue, E, which isinserted in a notch, E, in the lower end of the standard and is pivotedtherein by means of a screw or pin, F, inserted through the standard andthe upper end of the tongue. .Vhen the extension is lowered, as shown inFigs. 2 and 3, it is held against movement by means of a removable pinor peg, G, inserted transversely through the lower end of the standardand the tongue E, as shown. v

\Vithin the notch B in the upper end of the standard I pivot thelifting-lever H and the operating cam-lever I. The lifting-lever ispivoted at an intermediate point of its length, and has one endprojecting in front of the standard and adapted to engage under the axleof the wagon, as clearly shown. The rear end of the lifting-leverprojects from the standard and is connected to the operating camlever bymeans of a link, J. The said link J has its lower end pivoted to therear end of the lifting-lever and has its upper end provided with alongitudinal slot, K, which is engaged by a pin, L, projecting laterallyfrom the cam-lever. The cam-lever is pivoted at its front end within thenotch of the standard and projects rearward therefrom a suitabledistance, as shown. The said lever is provided at its front end with adepending cam, M, having a transverse shoulder, N, and faced with metalto prevent wear. This cam M bears upon the upper edge of thelifting-lever, and the shoulder N is adapted to engage a transverseshoulder, O, on the said lifting-lever, when the device is in use, asmost clearly shown in Fig. The edges of the lifting lever are also facedwith metal to prevent wear.

In operation the cam-lever is depressed to raise the lifting-lever, andthe weight of the wagon will cause the shoulders N O to engage, andthereby lock the device. As the cam-lever is depressed, the cam, bearingon the up per surface of the lifting-lever, depresses the rear endthereof and raises the front end, thereby lifting the wagon-axle, sothat the wheel will be raised from the ground and can be easily removedand the axle lubricated. Upon the pressure being relieved from thecam-lever the weight of the wagon depresses the front end of thelifting-lever, thereby raising the rear end and drawing the shoulder 0against the shoulder N, the slotted construe tion of the link J causingthe same to slip past the pin K, so that the cam-lever will not beraised. In order to disengage the levers, the cam-lever is given aslight downward push and is then quickly raised, so that the shoulders N0 will clear each other, and the pin K will draw upon the link J andthereby raise the rear end of the lifting-lever, consequently depressingthe front end and lowering the axle.

hen the device is used for raising the rear axle, the extension C islowered, as shown in Fig. 3, and when it is used for raising the frontaxle it is thrown upward, as shown in Fig. 1, thereby decreasing theheight of the jack to accommodate it to the difference in height betweenthe front and rear axle. \Vhen in the position shown in Fig. 1, theextension 0 also serves as an additional brace to hold the jack firm andsteady while in use.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. The combination of the standard having a notch in its lower end, anextension having a tongue, E, pivoted at its upper end in said notch,and a removable peg or pin inserted transversely through said tongue andthe standard, as specified.

2. In a wagon-jack, the combination of the to the standard above thelifting-lever, and having a shoulder, N, adapted to engage thelifting-lever, and a link, J, pivoted to the lifting-lever and providedwith a longitudinal slot engaged by a pin on the eamlever, as specified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signati'n'e in presence of two witnesses.

\VILLIAM BROWN.

\Vitnesses:

II. C. SHELTUN, C. XVI-IITTEMORE.

